From the Himalayas to the Chenab

The Ravi is one of the five rivers traditionally associated with Punjab and a tributary of the Indus system. A Chamba district survey places its headwaters in the Bara Bhangal region of Himachal Pradesh. It describes the river flowing through the Chamba valley, reaching the Punjab plains near Madhopur, passing Lahore and eventually joining the Chenab in Pakistan. Snowmelt and rainfall contribute to its flows. Its course links mountain valleys with agricultural and urban landscapes downstream and crosses an international boundary. The river’s catchment extends beyond the channel itself to the land and tributaries that drain into it.[1]

The Upper Bari Doab Canal

The Ravi has long been important to irrigation in the land between it and the Beas, known as the Bari Doab. A 1987 tribunal report describes the Upper Bari Doab Canal as a perennial canal completed in 1859. It records later plans for permanent headworks at Madhopur and damage to the works by floods before commissioning, followed by a revised project. The report provides an institutional account of irrigation development before Partition. Its dates describe stages in the works, not a claim that every canal or diversion in the region began at the same time.[2]

A river under pressure

An environmental management plan for a Lahore weather radar describes wastewater entering the Ravi through urban drains and links reduced dilution during low flow with deterioration in water quality. The document also notes monsoon inundation of low-lying areas. It is a project assessment from a particular period, not a current water-quality reading or a statement that conditions are identical throughout the river. The Ravi’s use for water supply and irrigation exists alongside the need to manage sewage, industrial discharges and flood risk. Monitoring at different places and times is needed to understand changes in a river that crosses several jurisdictions.[3]

Sources & notes

Source records include access dates and, where known, limits on what was examined. Checks used AI assistance; independent human or specialist review has not been completed.

  1. Himachal Pradesh Department of Environment, Science and Technology. District Survey Report: Chamba ↗Written source · Source date: 2024 · Locator: Printed pp. 18–20, Ravi River and key characteristics, indexed text. Accessed 2026-11-04.Indexed district survey passage checked for the Ravi’s course; direct PDF timed out. No current field survey was made.Return to From the Himalayas to the Chenab, paragraph 1 ↑
  2. Ravi and Beas Waters Tribunal. Report of the Ravi and Beas Waters Tribunal ↗Written source · Source date: 1987 · Locator: Chapter V, pre-Partition development. Accessed 2026-11-03.Previously recorded as inspected; the linked tribunal PDF returned HTTP 401 during this recheck, so the passage was not newly verified.Return to The Upper Bari Doab Canal, paragraph 1 ↑
  3. Pakistan Meteorological Department. Environmental and Social Management Plan: Lahore Weather Surveillance Radar ↗Written source · Source date: publication date not established · Locator: Surface water and drainage discussion. Accessed 2026-11-03.Previously recorded as inspected; the linked project PDF was inaccessible to the web reader during this recheck. No current water-quality sampling was done.Return to A river under pressure, paragraph 1 ↑
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Record PH-PLA-0185 · English edition · human review not performed